3D Printed Larynx as a Novel Simulation Tool for Window Elaboration in Medialization Laryngoplasty

Abstract

Objective: Surgical simulation training in residents has declined due to the limited exposure to cadaveric specimens. Three-dimensional (3D)-printing technology is rapidly taking an important role in different medical areas, especially in surgical specialties. It provides an alternative for resident simulation practices and for developing surgical skills before exposure to real settings. The elaboration of the thyroid window in the medialization laryngoplasty procedure requires high technical precision and experience for better outcomes.

Methods: The computer-based 3D reconstruction model was created using computed tomograph scan images from a standard larynx. The final model was created using a deposition modeling 3D printing technique with polylactic acid filament. The model was tested for surgical simulation practice in three otolaryngology residency programs in Bogotá, Colombia.

Results: The model had similar anatomic detail and it was considered very useful, safe, and relevant for surgical simulation.

Conclusions: 3D printed models are a cost-effective alternative for resident training.

Keywords: 3D printing; Anatomic model; Laryngology; Surgical simulation; Three-dimensional printing.